CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 26, 2018	Oct. 27, 2017	Oct. 26, 2018	Oct. 27, 2017
Revenues:
Net revenues	$ 1,517	$ 1,415	$ 2,991	$ 2,736
Cost of revenues:
Total cost of revenues	543	515	1,054	1,012
Gross profit	974	900	1,937	1,724
Operating expenses:
Sales and marketing	408	421	817	844
Research and development	211	194	419	387
General and administrative	69	69	142	137
Restructuring charges	0	0	19	0
Total operating expenses	688	684	1,397	1,368
Income from operations	286	216	540	356
Other income, net	7	6	25	11
Income before income taxes	293	222	565	367
Provision for income taxes	52	48	41	62
Net income	$ 241	$ 174	$ 524	$ 305
Net income per share:
Basic	$ 0.93	$ 0.65	$ 2.02	$ 1.13
Diluted	$ 0.91	$ 0.63	$ 1.96	$ 1.10
Shares used in net income per share calculations:
Basic	258	269	260	270
Diluted	264	275	267	277
Cash dividends declared per share	$ 0.40	$ 0.20	$ 0.80	$ 0.40
Product [Member]
Revenues:
Net revenues	$ 913	$ 819	$ 1,788	$ 1,546
Cost of revenues:
Total cost of revenues	428	397	826	773
Software Maintenance [Member]
Revenues:
Net revenues	236	224	465	447
Cost of revenues:
Total cost of revenues	8	6	15	13
Hardware Maintenance and Other Services [Member]
Revenues:
Net revenues	368	372	738	743
Cost of revenues:
Total cost of revenues	$ 107	$ 112	$ 213	$ 226